CMOS front-end for the MDT sub-detector in the ATLAS Muon Spectrometer, development and performance
CMOS front-end for the MDT sub-detector in the ATLAS Muon Spectrometer, development and performance
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ATLAS Muon 能谱仪中 MDT 子探测器的 CMOS 前端、开发和性能
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
S. Ahlen
中科院分区：
文献类型：
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作者：
C. Posch;J. Oliver;E. Hazen;S. Ahlen
本文介绍了ATLAS μ子谱仪MDT部分最后一个8通道前端的研制和性能。最后一次迭代的读出ASIC包含所有必需的功能，并符合设计规范。除了基本的“放大器-整形器-放大器”架构外，MDT-ASD还在每个通道内采用了一个威尔金森ADC，用于对μ子信号的前导部分进行精确的电荷测量。这些数据将用于时间-行走校正，从而提高跟踪器的空间分辨率，并用于腔室性能监测（气体增益、老化等）。还证明了该数据可用于通过dE/dX进行颗粒鉴定。一个可编程的脉冲注入系统，允许自动检测器校准运行的芯片上实现。介绍了实验室和室内原型ASIC的性能和功能测试结果。
Development and performance of the final 8-channel front-end for the MDT segment of the ATLAS Muon Spectrometer is presented. This last iteration of the readout ASIC contains all the required functionality and meets the design specifications. In addition to the basic "amplifier-shaper-discriminator"-architecture, MDT-ASD employs a Wilkinson ADC within each channel for precision charge measurements on the leading fraction of the muon signal. The data will be used for discriminator time-walk correction, thus enhancing the spatial resolution of the tracker, and for chamber performance monitoring (gas gain, ageing etc.). It was also demonstrated that this data can be used for performing particle identification via dE/dX. A programmable pulse injection system which allows for automated detector calibration runs was implemented on the chip. Results of performance and functionality tests on prototype ASICs, both in the lab and on-chamber, are presented.